Thanks for the reply. Sorry to be so blunt but you should read my whole posting again.
I was able to install Windows 7 and Windows 10 Insider Preview 10162 (which doesn't activate anymore, but that is a different issue).
The problem is as follows:
The Intel US15W chipset actually uses a PATA to SATA bridge to provide an internal SATA interface. So it really is a PATA (commonly known as IDE) interface.
No problem with that, it is just slow. On a HDD there is no problem with installing Windows 7 or later.
On an SSD however, the internal ATA controller of the SSD will report that it supports TRIM and since Windows 7 the driver recognizes and uses this ability. Windows Vista and prior don’t probe for it, don’t use it and therefor have no problem.
When Windows 7 and later tries to use the TRIM command (as reported to be supported by the SSD) it will fail, because the PATA-to-SATA-bridge of the US15W chipset doesn’t support TRIM correctly.
What happens is that Windows 7 and later will fail to format a drive with NTFS. It will hang at this point. Sadly, as soon as installing Windows on a new (unpartitioned) hard drive (or SSD) it will obviously create a partition and format that partition.
And there it will hang.
Workaround: Partition and format with Windows Vista installation media. After creating and formating the partition(s) is finished, abort Windows Vista installation, boot into Windows 7 or 8 or 8.1 or 10 installation and install it to the already created
and formated NTFS partition. This will work.
Then boot with a Bart PE boot CD. I used one with Windows 8.1 (Enterprise) on it. Using regedit, loading the SYSTEM hive from [SSD-drive letter]:\Windows\system32\config into HKEY_LOCAL_MACHINE (give it a temporary name, like "temp") and change within that
tree the value of ControlSet001\Control\Filesystem\DisableDeleteNotification from 0 to 1, then unloading this hive, and then continuing with the installation of Windows 10
does work.
In other words: you have to prevent Windows 7 and newer from using a reported TRIM ability in the case of a US15W chipset.
If you want to make Windows 10 better, you should program the SATA driver to always ignore TRIM in case of a Intel US15W chipset. You’re good if this chipset is running an IDE/ATA drive with TRIM – that should work because there is no PATA-to-SATA bridge
inbetween. But as soon as it is SATA, do the workaround, disable TRIM.
Summary:
The workaround is not trivial and requires
1) manual partition with another Windows (pre-7) or another OS (Linux?)
2) a Preinstallation Environment with regedit.exe (Bart PE) with access to the installation drive.
A regular user will not be able to install Windows 7 or newer on a Laptop with a US15W chipset and a SATA SSD, if you don’t fix this driver on the installation media. You should probably do this for the next Windows 10 updated installation media that you
produce.
If you do the research, you will find the
US15W chipset used with Atom Z5xx processors and Intel GMA500 chipset graphics. A view netbooks from around 2009 used this embedded hardware and were delivered with Windows XP pre-installed (Vista was too slow). Especially the x32 edition of Windows 10
looks very promising on this kind of netbook, because it is quite usable compared to Windows Vista.